Share This Author
High Weight Fraction Surfactant Solubilization of Single-Wall Carbon Nanotubes in Water
We report a simple process to solubilize high weight fraction single-wall carbon nanotubes in water by the nonspecific physical adsorption of sodium dodecylbenzene sulfonate. The diameter…
Carbon nanotube composites for thermal management
Single-wall carbon nanotubes (SWNTs) were used to augment the thermal transport properties of industrial epoxy. Samples loaded with 1 wt % unpurified SWNT material showed a 70% increase in thermal…
DNA translocation through graphene nanopores.
This work reports on DNA translocations through nanopores created in graphene membranes, a new class of nanopore devices in which electronic sensing and control are performed directly at the pore.
Probing the structure of DNA-carbon nanotube hybrids with molecular dynamics.
DNA-carbon nanotube hybrids (DNA-CN) are novel nanoscale materials that consist of single-wall carbon nanotubes (SWCN) coated with a self-assembled monolayer of single-stranded DNA (ssDNA). Recent…
Controlled fabrication of nanogaps in ambient environment for molecular electronics
We have developed a controlled and highly reproducible method of making nanometer-spaced electrodes using electromigration in ambient lab conditions. This advance will make feasible single molecule…
Photoluminescence and band gap modulation in graphene oxide
We report broadband visible photoluminescence from solid graphene oxide, and modifications of the emission spectrum by progressive chemical reduction. The data suggest a gapping of the…
Surface potentials and layer charge distributions in few-layer graphene films.
Electrostatic force microscopy measurements reveal that the FLG surface potential increases with film thickness, approaching a "bulk" value for samples with five or more graphene layers, and derives from unique aspects of charge screening by graphene's relativistic low energy carriers.
Electrostatically-generated nanofibers of electronic polymers
Free energy landscape of a DNA-carbon nanotube hybrid using replica exchange molecular dynamics.
A large-scale replica exchange molecular dynamics simulation that provides extensive sampling of the entire ensemble of oligonucleotide conformations in a (GT)(7)-SWCN hybrid expands the understanding of DNA-CN and indicates the relevance of REMD for explorations of the physical properties of organic-inorganic multifunctional nanomaterials.
Growth mechanism of hexagonal-shape graphene flakes with zigzag edges.
- Zhengtang Luo, Seungchul Kim, Nicole Kawamoto, A. Rappe, A. T. Johnson
- PhysicsACS nano
- 20 October 2011
This work reports a method for producing graphene flakes with hexagonal shape over large areas, by a brief chemical vapor deposition growth at atmospheric pressure on polished Cu catalyst foil, with limited carbon feedstock.